ADSM-L

Re: Internal Memory Managment TSM @MVS

2004-04-27 07:27:13
Subject: Re: Internal Memory Managment TSM @MVS
From: "MC Matt Cooper (2838)" <Matt.Cooper AT AMGREETINGS DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 27 Apr 2004 07:21:22 -0400
I was under the impression that if FREEHELD BYTES = MAXQUICKFREE BYTES  things 
were O.K.  I currently have mine set to 40MB.  Are you saying I am still low?
Matt

MAX initial storage  536870912  (512.0 MB)
    Freeheld bytes 40959642  (39.1 MB)
    MaxQuickFree bytes 40960000  (39.1 MB)
    44 Page buffers of 12671 : 133 buffers of 1583.
    62 Large buffers of 791 : 89 XLarge buffers of 98.
   113360 buffers free: 221949 hiAlloc buffers: 41790 current buffers. 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Stefan Holzwarth
Sent: Tuesday, April 27, 2004 3:09 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Internal Memory Managment TSM @MVS

Hi,

3 month ago i read about PMR92547, that describes performance-problems coming 
from a too small internal memorypool Since we had speedproblems we doubled that 
pool size and after 3 month i believe it was a good step forward.

With show memu you can have a look at the current settings (should be done 
after some uptime)

    MAX initial storage  1073741824  (1024.0 MB)
    Freeheld bytes 45106900  (43.0 MB)                  <- this is needed by
the TSM Server
    MaxQuickFree bytes 52682955  (50.2 MB)        <- this should be always
greater than freeheld
    51 Page buffers of 25724 : 194 buffers of 3215.
    26 Large buffers of 1607 : 153 XLarge buffers of 200.
   186666 buffers free: 257114 hiAlloc buffers: 70448 current buffers.
   144822 units of 56 bytes hiAlloc: 58024 units of 56 bytes hiCur.
  0000001 blocks, total 0002672, lgst 0002672 avg 0002672  by ¨0Cf?+
Ñ+80000E08.
  0000001 blocks, total 0000136, lgst 0000136 avg 0000136  by ¨0Cf?+
Ñ+80000080.
  0000001 blocks, total 0006652, lgst 0006652 avg 0006652  by ¨0Cf?+
Ñ+80000078.
  0000007 blocks, total 0001232, lgst 0000176 avg 0000176  by ¨0Cf?+
Ñ+80000062.
  0000669 blocks, total 0065147, lgst 0000285 avg 0000097  by ¨0Cf?+
Ñ+800009DE.


with "Show Memu SET MAXQUICK  52682955" set the     MaxQuickFree to about
50M


All at your own risk!

Kind regards,
Stefan Holzwarth

----------------------------------------------------------------------------
--
Stefan Holzwarth
ADAC e.V. (Informationsverarbeitung - Systemtechnik - Basisdienste) Am Westpark 
8, 81373 München, Tel.: (089) 7676-5212, Fax: (089) 76768924 
mailto:stefan.holzwarth AT adac DOT de

<Prev in Thread] Current Thread [Next in Thread>